La Plata to Piriápolis, Uruguay is about 442 road miles (712 km): roughly 9 h 21 min at the wheel if you don't stop. You cross from Argentina into Uruguay at about mile 201, at the Gualeguaychú–Fray Bentos bridge.
Full advisory: Argentina, Uruguay. Advisory issued: Argentina July 10, 2026; Uruguay July 28, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Drivers in Argentina tend to be aggressive, especially in Buenos Aires, and often ignore traffic regulations.”
- Uruguay: “Traffic fatalities are high in Uruguay.”
| Distance | 442 mi (712 km) |
|---|---|
| Time at the wheel, no stops | 9 h 21 min |
| Main roads, in order | RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 |
| Border crossing | about mile 201, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado |
| Fuel estimate (car at 25 mpg) | about 17.7 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
The border on the way to Piriápolis
The route crosses at about mile 201, at the Gualeguaychú–Fray Bentos bridge, from Entre Ríos into Río Negro. Plan on two checks on each side: immigration for your passport and customs for the car.
| Entering Uruguay (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. |
|---|---|
| Driving in Uruguay | You can drive on your U.S. license. |
| Entering Argentina (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid when you enter; leave a blank page for the entry and exit stamps. |
| Driving in Argentina | A valid U.S. license usually works; an International Driving Permit is recommended. |
| Rental car | Cross only if the rental company authorizes it in writing and gives you the papers for the border; ask before you book. |
Sources: U.S. State Department, Uruguay (updated August 13, 2026); U.S. State Department, Argentina (updated July 16, 2026). Checked October 10, 2026; rules change, so confirm before you go.
The La Plata–Piriápolis drive in a few lines
RN12 (47 mi) and RN9 (39 mi) carry about 19% of the 442 miles. The first 201 miles are in Argentina; the last 241 are in Uruguay. It runs through 9 regions: Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado. Of the 9 stops listed below, 4 are within a mile of the road.
The route from La Plata to Piriápolis, road by road
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–3 | 3 | Buenos Aires |
| RN1 | 3–33 | 30 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 33–37 | 4 | Ciudad de Buenos Aires |
| AV1-N | 37–42 | 5 | Ciudad de Buenos Aires |
| connecting roads | 42–45 | 3 | Ciudad de Buenos Aires |
| RN9 | 45–84 | 39 | Buenos Aires |
| connecting roads | 84–85 | 1 | Buenos Aires |
| RP6 | 85–89 | 4 | Buenos Aires |
| RN12 | 89–136 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 136–173 | 37 | Entre Ríos |
| local roads | 173–179 | 6 | Entre Ríos |
| RN136 | 179–198 | 19 | Entre Ríos |
| connecting roads | 198–201 | 3 | Entre Ríos |
| local roads | 201–298 | 97 | Río Negro, Soriano |
| connecting roads | 298–299 | 1 | Soriano |
| local roads | 299–335 | 36 | Colonia, San José |
| connecting roads | 335–338 | 3 | San José |
| local roads | 338–442 | 104 | San José, Canelones, Maldonado |
- Mile 29 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 45 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 107 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 201 of this route: Entre Ríos → Río Negro (international border)
- Mile 217 of this route: Río Negro → Soriano (region line)
- Mile 299 of this route: Soriano → Colonia (region line)
- Mile 316 of this route: Colonia → San José (region line)
- Mile 360 of this route: San José → Canelones (region line)
- Mile 429 of this route: Canelones → Maldonado (region line)
Where to stop on the way to Piriápolis
- Right off the route (under 1 mile): Catedral Stella Maris (mile 36), Cathedral of Mercedes (mile 219), Teatro Macció (mile 336), Cathedral of Our Lady of Guadalupe (mile 370)
- Nature and outdoors: Ciervo de los Pantanos National Park (mile 77)
- Museums and history: Casa Nacional del Bicentenario (mile 36), Catedral Stella Maris (mile 36), Museo de Arte Español Enrique Larreta (mile 41), Gualeguaychú Cathedral (mile 178), Cathedral of Mercedes (mile 219), Cathedral of Our Lady of Guadalupe (mile 370), Iglesia de Cristo Obrero y Nuestra Señora de Lourdes (mile 406)
Casa Nacional del Bicentenario
Part cultural center and part museum, the Casa Nacional del Bicentenario is located in the Recoleta section of Buenos Aires.
Catedral Stella Maris
Catedral Stella Maris is a Catholic church dedicated to Our Lady Star of the Sea and serves as the cathedral of Argentina's military diocese.
Museo de Arte Español Enrique Larreta
In Buenos Aires's Belgrano neighborhood, the Enrique Larreta Museum is devoted to Spanish art.
Ciervo de los Pantanos National Park
Marsh deer give their name to Ciervo de los Pantanos National Park, a Ramsar Site in Campana, Buenos Aires province, where waterbirds are abundant.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, serves as the cathedral church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
Cathedral of Mercedes
Dedicated to Our Lady of Mercy, this cathedral is the main Catholic church of Mercedes, Uruguay, and has been the seat of the Diocese of Mercedes since 1960.
Teatro Macció
San José de Mayo's Teatro Bartolomé Macció is a traditional theater, regarded as the city's most important building architecturally and declared a Historic Monument of Uruguay in 1984.
Cathedral of Our Lady of Guadalupe
Construction of Canelones' Cathedral of Our Lady of Guadalupe began in 1816; the church became a cathedral in 1961 and Uruguay's national shrine of Our Lady of Guadalupe in 2020.
Iglesia de Cristo Obrero y Nuestra Señora de Lourdes
Wavy brick walls and a rippling brick roof define this church in Estación Atlántida, along with an openwork brick bell tower and a baptistery set underground. Engineer Eladio Dieste designed it, and it opened in 1960.
When you get to Piriápolis
Museo ferroviario de Piriápolis
Near the Rambla de los Argentinos in Piriápolis, the Museo Ferroviario de Piriápolis is a railway museum on Armenia Street, across from the Argentino Hotel.
Cerro Pan de Azúcar Native Wildlife Breeding Station
Near Piriápolis in Maldonado, this breeding station for native wildlife on Cerro Pan de Azúcar is surrounded by native vegetation and offers guided visits, including a native wildlife trail and a path up the hill.
More drives to Piriápolis
- Paysandú to Piriápolis
- Tacuarembó to Piriápolis
- Salto to Piriápolis
- Rivera to Piriápolis
- Artigas to Piriápolis
- Bella Unión to Piriápolis
More drives from La Plata
- La Plata to Tigre
- La Plata to Luján
- La Plata to San Antonio de Areco
- La Plata to Arrecifes
- La Plata to Pergamino
- La Plata to Martínez
Continue Your Adventure
Frequently asked questions
How long is the drive from La Plata to Piriápolis, Uruguay?
About 9 h 21 min of driving without stops, over 442 miles.
How far is Piriápolis, Uruguay from La Plata by car?
About 442 miles (712 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.
Where does the La Plata to Piriápolis drive cross the border?
At about mile 201, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from La Plata into Uruguay?
No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. You can drive on your U.S. license. (U.S. State Department, updated August 13, 2026.)
What does the U.S. travel advisory say about the La Plata to Piriápolis drive?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions; Uruguay Level 2: Exercise Increased Caution. Read the full advisory before you go.
What roads does the drive from La Plata to Piriápolis use?
In order: RN1, AV1-N, RN9, RP6, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from La Plata to Piriápolis?
Closest to the road: Catedral Stella Maris (cathedral, mile 36, 0.5 mi from the route); Cathedral of Mercedes (cathedral, mile 219, 0.7 mi from the route); Cathedral of Our Lady of Guadalupe (cathedral, mile 370, 0.1 mi from the route). All stops are described above.
How we put this guide together
Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route: at least one strong stop for each stretch of the drive, then the best-known places nearest the road, up to nine in all. Places that are closed, private or not open to visitors are removed. Place descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on October 10, 2026. Conditions change, so check the linked sources before you travel.
Route data © OpenStreetMap contributors.